Soldering iron



FIG. 1 is a perspective view of a soldering iron.

FIG. 2 is a front elevation view thereof.

FIG. 3 is a rear elevation view thereof.

FIG. 4 is a top plan view thereof.

FIG. 5 is a bottom plan view thereof.

FIG. 6 is a right side elevation view thereof.

FIG. 7 is a left side elevation view thereof; and,

FIG. 8 is an enlarged cross-sectional view thereof taken along line 8—8 in FIG. 2.

The portion of the article shown in broken lines is for illustrative purpose only and forms no part of the claimed design. 

The ornamental design for a soldering iron, as shown and described. 